The report includes 31 individual contributions by experts from six countries and two international organizations in different areas of the accelerator driven transmutation technology intended to be applied for the treatment of highly radioactive waste an...
National Technical Information Service (NTIS)
An outline is presented of the status of nuclear data evaluation for accelerator-driven systems. The international effort consists mainly of measuring, compiling and calculating nuclear data for elements and isotopes relevant for transmutation of radioact...
The use of electron accelerators in radioactive waste inspection and assay is discussed. Examples of electron accelerator driven real time radiography and computed tomography of radioactive waste packages are given. The techniques of active gamma- and active neutron-interrogation are described, ...
NASA Astrophysics Data System (ADS)
It is discussed the interest of Russian Federal Nuclear Center-Institute of Technical Physics at Chelyabinsk-70 in the research of Accelerator Driven Technologies applications for radioactive waste transmutation, cumulated actinides burning, energy production. The ITP background and opportunities for this research are presented. It is ...
Energy Citations Database
The purpose of this study is to examine the transient heat transfer characteristics of liquid mental as the coolant used in accelerator-driven transmutation process reactor which is related the disposal of high-level radioactive nuclide. At current stage,...
Accelerators can play a role in the disposal of long-lived radioactive waste: an alternative to the storage in deep underground repositories might transmute long-lived elements into stable or short-lived ones in subcritical systems driven by spallation ne...
A Proposal for a future Radioactive Beams Facility has been developed based on ISIS, the world's brightest pulsed neutron source. Radioactive ions are produced by the spallation process driven by a 100 {mu}A, 800 MeV proton beam delivered from the ISIS synchrotron accelerator. This is ten times more ...
As a prior option of the next generation of energy source, the accelerator driven subcritical nuclear power system (ADS) can use efficiently the uranium and thorium resource, transmute the high-level long-lived radioactive wastes and raise nuclear safety. The ADS accelerator should provide the proton beam with tens ...
E-print Network
Reactor safety, the disposal of high-level nuclear waste, and nonproliferation of nuclear material for military purposes are the problems of greatest concern for nuclear energy. Technologies for accelerators developed in the field of high-energy physics c...
An important international effort is devoted to find a suitable solution to incinerate radioactive nuclear waste issued from conventional power plants and from nuclear disarmament. Practically all innovative projects consist of a sub critical system driven by an external neutron source obtained by spallation induced by a high intensity proton ...
Experiments were performed at the Nuclear Engineering Teaching Laboratory (NETL) in 2005 and 2006 in which a 20 MeV linear electron accelerator operating as a photoneutron source was coupled to the TRIGA (Training, Research, Isotope production, General Atomics) Mark II research reactor at the University of Texas at Austin (UT) to simulate the operation and characteristics of a ...
Progress in particle accelerator technology makes it possible to use a proton accelerator to produce energy and to destroy nuclear waste efficiently. The energy amplifier (EA) proposed by Carlo Rubbia and his group is a subcritical fast neutron system driven by a proton accelerator. It is particularly attractive ...
Recent work at Los Alamos has revealed new techniques leading to greatly enhanced feasibility for using intense particle accelerators to drive systems for burning existing radioactive waste, and for electrical power generation with a much reduced waste stream in the future. The system requires the intense flux levels that can only be provided by an ...
The Japan Atomic Energy Agency (JAEA) has been proceeding with the research and development on accelerator-driven system (ADS) for the transmutation of long-lived radioactive nuclides. The ADS proposed by JAEA is a lead-bismuth eutectic (LBE) cooled fast subcritical core with 800 MWth. Various activities were conducted to investigate the feasibility of the ...
... Accession Number : ADD341602. Title : Accelerated Physical Modelling Of Radioactive Waste Migration In Soil,. Corporate Author : ...
DTIC Science & Technology
The research into advanced acceleration concepts for electron linear accelerators being pursued at SLAC is reviewed. This research includes experiments in laser acceleration, plasma wakefield acceleration, and mmwavelength RF driven accelerators.
DOE Information Bridge
The capabilities of modern proton or deuteron linear accelerators (1 GeV, 200 mA average current) enable a new physics and engineering approach using thermal neutrons to transmute both actinide and fission product radioactive wastes to short-lived or non-radioactive by-products. A clean and economically attractive energy source with a ...
Historically, subcritical accelerator-driven systems have been called electronuclear devices. Interest in these devices has been revived for numerous nuclear applications, such as boron neutron capture therapy, accelerator transmutation of waste (ATW), and accelerator-based conversion (ABC). The latter systems are being investigated at ...
Transmutation is a worldwide promising and feasible technology for significant reduction of the amount, and thereby, the long-term radiotoxicity of highly radioactive wastes produced by the operation of nuclear power plants such as light water reactors. Plutonium, minor actinides and long-live fission products can be transmuted in an Accelerator ...
The accelerator-driven transmutation of waste (ATW) system has been proposed for transmuting the long-lived radioactive nuclei of high-level waste to stable or short-lived species. In recent ATW design concepts, lead-bismuth eutectic (LBE), consisting of ...
The schemes of jet gas and liquid targets as well as the gastargets with a solid phase dispersion are introduced to use to receive the neutrons admitted to a subcritical reactor core. The possible variants of target position in the reactor are considered, target characteristics are calculated. The authors pay a great attention to the estimation of radioactive products yield ...
Researchers at Los Alamos have been developing transmutation concepts involving accelerator-driven nuclear systems. A medium energy, high current proton beam strikes a heavy metal target, producing a high flux of spallation neutrons. These neutrons are moderated to near-thermal energies in a blanket surrounding the target. Materials to be transmuted flow through the blanket ...
The management of long-lived high-level waste, such as minor actinides (MA) and long-lived fission products (LLFP), is one of the most important issues to be solved for the utilization of the nuclear fission energy. The transmutation project of the radioactive wastes based on an accelerator driven sub-critical (ADS) system is very ...
When the authors first proposed an accelerator-driven reactor, the concept was opposed by physicists who had earlier used the accelerator for their physics experiments. This opposition arose because they had nuisance experiences in that the accelerator wa...
The Accelerator Performance Demonstration Facility is the front-end prototype of a CW accelerator useful for accelerator-driven technologies. Its purpose is for evaluating the reliability, availability, and maintainability of a high-current and high-power...
An understanding of the interactions of neutrons and protons below a few hundred MeV with nuclei is important for a number of applications. In this paper, two new applications are discussed: radiation transport calculations of energy deposition in fast neutron and proton cancer radiotherapy to optimize the dose given to a tumor; and intermediate-energy proton accelerators ...
The production of stable and radioactive residual nuclides by medium-energy protons and neutrons is of importance for many fields of basic and applied sciences ranging from astrophysics over space and environmental sciences, medicine, accelerator technology, space and aviation technology to accelerator driven ...
An accelerator-driven fast reactor (700 MWt), run in a subcritical condition, and fueled with MOX can generate {sup 233}U more safely and efficiently than can a critical reactor. We evaluate the production of {sup 233}U, {sup 239}Pu, and the transmutation of the long-lived fission products of {sup 99}Tc and {sup 129}I, which are loaded with YH1.7 between the fast core and ...
Nuclear systems under study in the Los Alamos Accelerator-Driven Transmutation Technology program (ADTT) will allow the destruction of nuclear spent fuel and weapons-return plutonium, as well as the production of nuclear energy from the thorium cycle, without a long-lived radioactive waste stream. The subcritical systems proposed represent a radical ...
The central issue underlying this paper is related to elucidating the hazard of radioactive spallation products that might be an important factor affecting the design option of accelerator-driven systems (ADSs). Hazard analysis based on the concept of Annual Limit on Intake identifies alpha-emitting isotopes of rare earths (REs) (dysprosium, gadolinium, ...
... Accession Number : ADA057287. Title : A Laser-Driven Pellet Accelerator for CTR Fuel Injection. Descriptive Note : Master's thesis,. ...
Laser-driven acceleration holds great promise for significantly improving accelerating gradient. However, scaling the conventional process of structure-based acceleration in vacuum down to opticalerent kind of structure. We require an optical waveguide th...
Plasma accelerators may be driven by the ponderomotive force of an intense laser or the space-charge force of a charged particle beam. The implications for accelerator design and the different physical mechanisms of laser-driven and beam-driven plasma acceleration are ...
Theoretical investigations of plasma-based accelerators and other advanced accelerator concepts. The focus of the work was on the development of plasma based and structure based accelerating concepts, including laser-plasma, plasma channel, and microwave driven plasma accelerators.
... Descriptors : *CARBON DIOXIDE LASERS, LASER APPLICATIONS, RAMAN SCATTERING, ELECTRON ACCELERATORS, LINEAR ...
An accelerator can be used to increase the safety and neutron economy of a power reactor and transmuter of long-lived radioactive wastes, such as minor actinides and fission products, by providing neutrons for its subcritical operation. Instead of the rather large subcriticality of k=0.9-0.95 which we originally proposed for such a transmutor, we propose ...
The perspectives are discussed of the measurements for the charge radii and nuclear moments by the laser resonance spectroscopy methods on the beams of the accelerated radioactive nuclei. The calculations are performed of the isotopic shifts and hyperfine...
This is the final report of a one-year Laboratory-Directed Research and Development (LDRD) Project at the Los Alamos National Laboratory (LANL). This project investigated separations technology development needed for accelerator-driven transmutation technology (ADTT) concepts, particularly those associated with plutonium disposition (accelerator-based ...
... Title : The Accelerated Tests of Machine Parts and Equipment for Wear Resistance (with the Application of Radioactive Indicators Wear),. ...
There are many possible applications for the non-scaling Fixed Field Alternating Gradient (NS-FFAG): accelerating non-relativistic ions, ion cancer therapy, proton drivers, accelerator driven subcritical reactors, heavy radioactive ions, recirculating linacs, and etc. They are confronted with two significant ...
There is an increasing interest in radioactive ion beams for astrophysics and nuclear physics research and applied programs. This interest has led to an International Conference on Radioactive Nuclear Beams and a Workshop on the Science of Intense Radioac...
... Pseudoresonant Laser Wakefield Acceleration ... these mechanisms have practical limits to the max - imum length of the acceleration regions. ...
A reply to the comment on unlimited electrons acceleration in laser-driven plasma waves is presented.
The heliocentrifugal motion of coronal loop transients is likely driven largely by the buoyant force
NASA Technical Reports Server (NTRS)
Studies in nuclear energy and transmutation of radioactive waste require neutron data for conceptual and performance studies, to determine the viability of advanced ideas such as an Accelerator Driven System and to fix the safety margins of any new concepts. IRMM's neutron data-measurement program addresses data needs ...
Studies in nuclear energy and transmutation of radioactive waste require neutron data for conceptual and performance studies, to determine the viability of advanced ideas such as an Accelerator Driven System and to fix the safety margins of any new concepts. IRMM's neutron data-measurement program addresses data needs associated with ...
When the authors first proposed an accelerator-driven reactor, the concept was opposed by physicists who had earlier used the accelerator for their physics experiments. This opposition arose because they had nuisance experiences in that the accelerator was not reliable, and very often disrupted their work as the ...
The acceleration efficiency of a laser driven linear accelerator is analyzed. The laser power, loss factor and impedances determine the maximum charge that can be accelerated and the efficiency of that acceleration. The accelerator structure can be incorporated into a laser ...
Before any experiment on reactor driven by an accelerator, computer simulation supplies tools for optimization. Some of the key parameters are neutron production on a heavy target and neutronic distribution flux in the core. During two code benchmarks organized by the NEA-OECD, simulations of energetic incident proton collisions on a thin lead target for ...
Emissions of protons and alpha-particles from neutron and alpha-induced reactions have been estimated using two nuclear reaction model codes ALICE91 and PRECO-2000. Calculated results have been compared with available energy differential and double differential emission cross sections from experimental measurements. Analysis of the data based on different nuclear reaction mechanisms revealed the ...
PubMed
Nuclear waste management involves many issues. ATW is an option that can assist a repository by enhancing its capability and thereby assist nuclear waste management. Technology advances and the recent release of liquid metal coolant information from Russia has had an enormous impact on the viability of an ATW system. It now appears economic with many repository enhancing attributes. In time, an ...
... HYPERONS, *PARTICLES, *PROTON BOMBARDMENT, CLOUD CHAMBERS, PARTICLE ACCELERATORS, PRODUCTION, RADIOACTIVE ...
The concept of a subcritical system driven by an external source of neutrons provided by an accelerator ADS (Accelerator Driver System) has been recently revived and is becoming more popular in the world technical community with active programs in Europe,...
This project will analyze and design a novel oblique-detonation-wave (ODW), ram- accelerator-driven propulsion concept for the acceleration of tube-launched ...
NASA Website
This report discusses the following topics: Composition of Accelerator Radiation Fields; Shielding of Electrons and Photons at Accelerators; Shielding of Hadrons at Accelerators; Low Energy Prompt Radiation Phenomena; Induced Radioactivity at Accelerators...
The Holifield Radioactive Ion Beam Facility (HRIBF) includes a cyclotron (ORIC) which provides high-intensity light-ions for producing radioactive atoms, and a 25 MV tandem electrostatic accelerator which is used to accelerate the radioactive-ions for nuclear structure and nuclear ...
This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, Acceleration, Plasma Beat Wave Acceleration, Inverse Free ...
Recent development work conducted at Brookhaven National Laboratory on technologies which use particle accelerator-driven targets is summarized. These efforts include development of the Spallation-Induced Lithium Conversion (SILC) Target for the Accelerator Production of Tritium (APT), the Accelerator-Driven Assembly for Plutonium ...
The term beta-beam has been coined for the production of a pure beam of electron neutrinos or their antiparticles through the decay of radioactive ions circulating in a storage ring. This concept requires radioactive ions to be accelerated to a Lorentz ga...
The absence of time structure and the excellent beam and beam transport properties of tandem electrostatic accelerators make them an attractive choice for the acceleration of a large class of radioactive ion species produced with the ISOL technique. In th...
A study using radioactive microspheres for the investigation of cerebral blood flow during acceleration is described. Details of a technique for the blunt dissection of cerebral tissues are included. Results of flow studies at 3 and 5 G sub z acceleration...
The existing superconducting linac ATLAS is in many respects an ideal secondary beam accelerator for an ISOL (Isotope separator on-line) type radioactive beam facility. Such a facility would require the addition of two major accelerator elements: a low ch...
Since the superconducting heavy ion linac ATLAS is an ideal post-accelerator for radioactive beams, plans are being developed for expansion of the facility with the addition of a driver accelerator, a production target/ion source combination, and a low q/...
This report discusses radioactive gas production around non-Federally owned particle accelerators, and the release of such gases to the atmosphere. The estimated 1200 non-Federally owned accelerators in the United States are categorized by type and energy...
Simulations are presented for a laser-driven cyclotron autoresonance accelerator with a practical guide magnetic field, as produced by a single coil. Effects that are investigated include acceleration in the non-resonant magnetic field profile, reduced acceleration due to misalignment between the magnetic field ...
This paper describes principles of Accelerator-Driven Transmutation of Nuclear Wastes (ATW) and gives some flavour of the most important topics which are today under investigations in many countries. An assessment of the potential impact of ATW on a future of nuclear energy is also given. Nuclear reactors based on self-sustained fission reactions --- after spectacular ...
Several accelerator designs are discussed in search for a greater than 1 TeV electron accelerator. The types considered are linear accelerators, the inverse Cerenkov accelerators, the wiggler (inverse free electron laser), plasma accelerators, and the grating accelerator. A ...
Proposals are currently being made for systems to treat radioactive waste based on the use of accelerator-driven neutron sources. A linear proton accelerator with energies as high as 1600 MeV and currents up to 250 ma are anticipated for the driver. The neutron fluxes may reach up to 10{sup 20} neutrons/m{sup 2}s as generated by the ...
The ISOLDE online mass separator located at CERN provides a large variety of radioactive ion beams for research on nuclear physics, nuclear astrophysics, fundamental interactions, atomic physics, radiochemistry, nuclear medicine, condensed matter science, life sciences and others. The recently operational REX-ISOLDE post-accelerator is capable of ...
The US is developing the physics and technology of induction accelerators for heavy-ion beam-driven inertial fusion. The recirculating induction accelerator repeatedly passes beams through the same set of accelerating and focusing elements, thereby reduci...
Several laser plasma accelerator schemes are reviewed, with emphasis on the Plasma Beat Wave Accelerator (PBWA). Theory indicates that a very high acceleration gradient, of order 1 GeV/m, can exist in the plasma wave driven by the beating lasers. Experime...
A novel computer code is being developed to generate system level designs of radiofrequency ion accelerators with specific applications to machines of interest to Accelerator Driven Transmutation Technologies (ADTT). The goal of the Accelerator System Mod...
These are the Powerpoint slides from a presentation on electrically driven technologies for radioactive aerosol abatement. The overall objectives of this project were:(1) to generate a scientific basis for developing innovative electrically based filtration systems that are appl...
EPA Science Inventory
The characteristics of ablation plasma from planar targets, driven by long Nd:glass laser pulses (4 nsec,
motor-driven flywheels that are accelerated to apply continuously controllable torques to a spacecraft by means ... sired spacecraft control system response time. ...
Tokai Radioactive Ion Accelerator Complex (TRIAC) is the low-energy accelerator complex for re-accelerating short-lived radioactive ion beams (RIBs) in Japan. After the introduction of the present status of the TRIAC, considered as future extension of the present TRIAC activity, we are going to ...
Both self-acceleration and laser-acoustic acceleration in crystals are considered. The conduction electrons in the crystal are treated as a plasma and are the medium through which the acceleration takes place. Self-acceleration is the possible acceleration of part of a bunch due to plasma ...
Compared with the number of nuclear power plants that will be decommissioned over the next few years accelerators are only a ``small'' source of radioactivity although at CERN the total amount of mostly metallic material activated in the operation of the accelerators is estimated to be of the order of 15 Mtons. Various existing ...
Since the superconducting heavy ion linac ATLAS is an ideal post-accelerator for radioactive beams, plans are being developed for expansion of the facility with the addition of a driver accelerator, a production target/ion source combination, and a low q/m pre-accelerator for radioactive ions. ...
A compact, accelerator driven, neutron activator based on a modified version of the Adiabatic Resonance Crossing (ARC) concept has been developed, with the aim of efficiently utilising ion-beam generated neutrons for the production of radioactive nanoparticles for brachytherapy. Extensive Monte Carlo simulations have been carried out ...
Accelerator reliability corresponding to a very low frequency of beam interrupts is an important new accelerator requirement for accelerator-driven subcritical reactor systems. In this paper we review typical accelerator-reliability requirements and discuss possible methods for meeting these goals with ...
Recent advances in laser-ion acceleration have motivated research towards laser-driven compact accelerators for medical therapy. Realizing laser-ion acceleration for medical therapy will require adapting the medical requirements to the foreseeable laser constraints, as well as advances in ...
The Accelerator Performance Demonstration Facility is the front-end prototype of a CW accelerator useful for accelerator-driven technologies. Its purpose to evaluate the reliability, availability, and maintainability of a high-current and high-power machine. This paper describes the design and technology development of the facility.
The Accelerator Performance Demonstration Facility is the front-end prototype of a CW accelerator useful for accelerator-driven technologies. Its purpose is for evaluating the reliability, availability, and maintainability of a high-current and high-power machine. In this paper, design and technology development of the facility will be ...
We describe the power production process in Accelerator Driven Sub-critical systems employing Thorium-232 and Uranium-238 as fuel and examine the demands on the power of the accelerator required.
This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, ...
... Title : Analysis of a Rail Gun Plasma Accelerator. ... Abstract : A model is developed to study the characteristics of an arc-driven rail gun. ...
Energy measurement in coaxial plasma accelerator determining current, voltage on gun and at open end
Holifield Radioactive Ion Beam Facility An Office of Science User Facility What is HRIBF Science Initiatives Accelerators Beams Equipment & Detectors Accepted Experiments Schedule...
Science.gov Websites
This contribution will provide an overview of the experimental nuclear astrophysics projects pursued with stable and radioactive beams at the CSM accelerator laboratory, the Holifield Radioactive Ion Beam Facility (HRIBF) at ORNL and at the TRIUMF facility in Vancouver.
... In the case of REX-ISOLDE, the post accelerator at the CERN-ISOLDE radioactive beam facility, a unique system for beam preparation is used. ...
This study has been focused on an Accelerator-Driven Energy Amplifier, based on the concept proposed by the CERN-group. To analyze the performance of this system the extensive optimization of the core lattice was done, the temperature coefficients of reactivity were investigated, reactivity budget and power distribution were estimated.
Recent development work conducted at Brookhaven National Laboratory on technologies which use particle accelerator-driven targets is summarized. These efforts include development of the Spallation-Induced Lithium Conversion (SILC) Target for the Accelerat...
In November 1996, SKB started financing of the project 'System and safety studies of accelerator driven transmutation systems and development of a spallation target'. The aim of the project was stated as: (1) Development of a complete code for simulation ...
Accelerator-Driven Transmutation Technology, or ADT(sup 2), is a collection of programs that share a common theme - they each have at their heart an intense source of neutrons generated by a high-energy proton beam striking a heavy metal target. The beam ...
There is renewed interest in using accelerator driven neutron sources to address the problem of high-level long-lived nuclear waste. Several laboratories have developed systems that may have a significant impact on the future use of nuclear power, adding ...
A new concept for an accelerator-driven transmutation system is described. The central feature of the concept is generation of intense fluxes of thermal neutrons. In the system all long-lived radionuclides comprising high-level nuclear waste can be transm...
The objective of this project has been to develop computational methods that will enable more effective analysis of Accelerator Driven Systems (ADS). The work is centered at the University of Missouri at Rolla, with a subcontract at Northwestern Universit...
We discuss the potential for using microfabrication techniques for laser-driven accelerator construction. We introduce microfabrication processes in general, and then describe our investigation of a particular trial process. We conclude by considering the issues microfabrication raises for possible future structures.
We present an investigation of a class of particle accelerators driven by the mechanical implosion of an electrically conducting cylindrical liner onto a ring of charged particles embedded in an axial magnetic field. We have performed a number of two-dime...
Theoretical and experimental studies have been performed on laser-driven particle accelerators. The theoretical work primarily consisted of detailed analysis and computer simulation of the stimulated Cherenkov interaction. Additional analysis was also don...
Kinetic calculations were made to show that subcritical accelerator driven devices are robust and stable. The calculations show that large changes in reactivity that would lead to an uncontrollable excursion in a reactor would lead only to a new power lev...
The purpose of this paper is to compare the safety characteristics of an accelerator driven metal fueled fast system to a critical core on a consistent basis to determine how these characteristics are affected solely by subcritically of the system. To acc...
A sudden drop in power after a beam interruption leads to thermal fatigue effects in structural components in the blanket of an accelerator driven system. These thermal fatigue effects limit component lifetimes. A sudden return to power after a beam inter...
Fissile fuel can be produced at a high rate using an accelerator-driven Pu-fueled subcritical fast reactor which avoids encountering a shortage of Pu during a high growth rate in the production of nuclear energy. Furthermore, the necessity of the early in...
Conventional nuclear flowmeters do not function satisfactorily in polymer injection wells or in water injection wells at low flow rates. In polymer wells, accurate injection profiles depend on the variable shot duration of the radioactive tracer material. The conventional nuclear flowmeter ejects tracer material perpendicular to the logging instrument which may cause it to ...
This work presents a new possibility of registration of ionizing radiation by the flowing gaseous radiochemical method (FGRM). The specified method uses the property of some solid crystalline lattice materials for a free emission of radioactive isotopes of inert gas atoms formed as a result of nuclear reactions. Generated in an ampoule of the detector, the ...
A radioactive tracer method for studying the effectiveness of various materials to mitigate the explosively driven dispersal of radioactive substances into air has been developed and applied. Experiments are conducted in a facility call CON-CON (for Conic...
This report discusses the following topics: Composition of Accelerator Radiation Fields; Shielding of Electrons and Photons at Accelerators; Shielding of Hadrons at Accelerators; Low Energy Prompt Radiation Phenomena; Induced Radioactivity at Accelerators; Topics in Radiation Protection ...
The problems of creating solid antimatter are listed and examined. Laser driven accelerators may reduce the technological and financial magnitude of the task.
... results indicate that the perturbation level at the beginning of the ... reach the front and rear free surfaces, they are ... front surface of the target and at the ...
This paper identifies the basic safety functions in nuclear reactor design, and the safety design issues for accelerator-driven subcritical reactors.
complexity. � Increased cognitive workload. Our approach to high performance visualization is to focus
threshold energy than parallel shocks? " How low in the corona can. CME-driven shocks form and accelerate particles? to what energies? ...
Jan 25, 1999 ... determine the source mechanisms for plasma acceleration in the topside ... Exchange Dynamics Study (FEDS.98), was driven by two factors. ...
... LASER BEAMS, *NUCLEAR FUSION, ABLATION, PLASMAS ... LASERS, MOMENTUM TRANSFER, PLASMA DIAGNOSTICS, FOILS(MATERIALS ...
In a high intensity proton accelerator complex comprising a linac and a ring, a beam chopper is often necessary in order to reduce the beam loss during injection from the linac to the ring. The China Spallation Neutron Source (CSNS) front end incorporates a pre-chopper in the Low Energy Beam Transport line (LEBT) that will remove a 530 ns section of beam at approximately 1 MHz ...
This is the Final Report on the research and development of high brightness pulse laser driven thermionic electron sources. Enhanced coupling of electron beam energies to radiative fields in accelerator-driven free-electron lasers requires injector cathod...
Reactor safety, the disposal of high-level nuclear waste, and nonproliferation of nuclear material for military purposes are the problems of greatest concern for nuclear energy. Technologies for accelerators developed in the field of high-energy physics can contribute to solving these problems. For reactor safety, especially for that of a Na-cooled fast reactor, the use of an ...
